]>Number1.9k2.0k2.1k2.2k2002200420062008201020122014Includes limestone-dolomite reported with no distinction between the two kinds of stone. Data are rounded to nomore than three significant digits, except unit values; may not add to totals shown. Does not include AmericanSamoa, Guam, Puerto Rico, and the U.S. Virgin Islands.Limestone Quarries in the USSource: U.S. Geological Survey